DE19516159C2 - Adjustable hinge - Google Patents

Description

The invention relates to an adjustable hinge according to the preamble of claim 1.

Door hinges are located on almost every door in a building and serve for rotating suspension and storage of the door in an associated Door frame.

The door is usually suspended with the help of two generally identical, at the top and bottom of the door and the associated door frame attached door hinges, each of which from a first lower frame-side holding element, a second door-side upper holding element and one of the two holding elements connecting bolt element is formed. The bolt element is inserted from below into the lower frame-side holding element or pressed in and protrudes upwards from the lower holding element out. The lower holding element usually still has two lying parallel in one plane and radially laterally from the lower one Holding element protruding spigot by two correspon bores in the door frame are added to the Attach the holding element to the door frame. The upper, door-side Holding element has a blind hole that the from the lower Holding element protrudes other end of the bolt member  and thereby for a rotatable radial bearing of the upper Holding element ensures. The due to the weight of the door The required eel storage is usually carried out over the other opposite end faces of the upper and lower holding element, which slide on each other when the door is inserted. At the top Retaining element is a radially outward extending Threaded pin formed, which when assembling the door in a associated threaded hole formed in the door is screwed in. This ensures that the distance between the door and the upper holding element and thus the distance between the door and Door frame by screwing the upper holding element in or out is adjustable in the door.

A disadvantage of the side, hereinafter also referred to as radial Adjusting these conventional door hinges is that for everyone Adjustment process the door must be completely unhooked to the Threaded pin of the upper holding element in the associated thread to be able to turn the bore of the door.

A hinge is known from EP 0 249 945, which is at the top Holding element a threadlessly connected to this Guide pin and an additional one parallel to the first pin in a radial through bore of the holding element rotatably tenen second threaded pin. By turning the thread pin in the through hole can therefore with the door installed Distance between the upper holding element and the door, or the Door frames can be changed. There is no information about this in the Scriptures made like the threaded pin in the radial direction in the through gear hole of the holding element is fixed. From the drawings is only removable that the threaded bolt within the holding elements have an annular thickening that fits into one in each Through hole engages formed groove. A disadvantage of this groove Spring connection is that the upper holding element around Threaded pin can turn freely. This leads to that always turn the upper holding element to the side when hanging the door and therefore must be held in place by hand in order for that upper  Holding element at all on the bolt element of the hinge to be able to put off. The installation of one with such door hinges equipped door is therefore not by one person alone or only with great skill feasible.

The conventional door hinges also offer no way axial distance between the lower holding element and the upper Holding element and thus the distance between the lower edge of the door and the floor or the threshold (hereinafter also referred to as "height of the Door ") in a simple way to change. A change of the axial distance between the upper and lower holding element can only be achieved with conventional door hinges in that one or more between the upper and the lower holding element Washers can be positioned that are one of the desired Distance change must have the appropriate thickness. For installation These washers require you to completely close the door each time remove and then reinstall. In addition, it is with the previous ones described door hinges not possible the distance between the two holding elements smaller than that due to the direct contact bordering holding elements to choose predetermined minimum distance and thereby the distance between the bottom edge of the door and the Reduce flooring. A reduction in the distance between the flooring and the bottom edge of the door, however of particular interest if, for example, a later applied thicker carpet is removed to one the wooden floorboard underneath can be used as a step. In this case arises between the bottom edge of the door and the Wood flooring inevitably a gap, which is approximately the thickness of the removed carpeting and unhindered by the draft can step through.

FR 21 84 130 shows a height-adjustable hinge consisting of a lower holding element with an internal thread formed therein Through hole, an upper holding element with one in it trained blind bore and a bolt element, which a Thread section and an adjoining smooth-walled  has a cone-shaped section. The threaded section of the bolt elements is in the internal thread through hole of the lower Screwed holding element and has one on its front side Slit for receiving the blade of a screwdriver, with which the bolt element through the internal thread through hole can be rotated when the door is installed to adjust the door height put. To secure the bolt element against accidental Twisting is a maggot in the threaded hole from below screwed in to form a counter screw. This in This way height adjustable door hinge has the disadvantage that on the one hand for each adjustment process, first the grub screw from the inside threaded through hole must be unscrewed to the Then turn the bolt element with a screwdriver can.

The door hinge described in EP 0 249 945 has height adjustment the door in its lower holding element one with an internal thread provided blind hole in which the threaded section of the the two retaining elements connecting bolt element is screwed. The bolt element has a locking means for in the middle Tool, e.g. B. a wrench with which a Höhenver position with the door installed from the side. To do that To secure the bolt element against twisting is on it Threaded section a lock nut screwed on by a ver turn in the direction of the lower holding element to tension brings about between the lower holding element and the bolt element.

The door hinge according to EP 0 249 945 shows the heights adjust the disadvantage that to adjust the same at builders door a total of two adjustment tools are required. With one Adjustment tool must be made after setting the desired door height the bolt element to be fixed in position, then with the other adjustment tool to tighten the lock nut. Will the Lock nut, however, tightened without the bolt element through another tool is fixed in its position, this turns Bolt element due to the weight of the door in the  Threads of the lock nut caused clamping and Frictional forces as well as the downward rotation of the bolt element supporting weight of the door with the lock nut, whereby the door lowers and the previously set door height again is adjusted. Furthermore, the use of a lock nut leads to that between the fully screwed bolt element the minimum and maximum distance resulting from the upper and lower holding element Thickness of the lock nut is reduced, so the door by this value can be lowered less far.

The object of the invention is to solve a door hinge create, which can be produced inexpensively, simply opened is built and which avoids the disadvantages of the prior art.

This object is achieved according to the invention by the features of Claim 1 solved.

Further features of the invention are in the subclaims contain.

The invention has the particular advantage that the for the adjustment work on the door required a fraction of the time Reduced time with conventional, non-adjustable and only by twisting the entire upper holding element removed door radially adjustable door hinges is required. This is due to the fact that both the radial (lateral) adjustment as also the axial (door height) adjustment of the door using the Door hinges according to the invention can take place with the door installed and a time-consuming, exhausting and sometimes repeated there is no need to lift and reinsert the door. Thereby can be used especially in large buildings with numerous doors significant labor and cost savings can be achieved. In addition, when using the inventive Door hinges the advantage that a height and side adjustment of the door now also by less skilled people or by People can be carried out to get out and Lifting a heavy door required physical strength can't muster.

The invention is described below with reference to the drawings preferred embodiments described as examples. In the Show drawings

Fig. 1 is a cross sectional view of an axial invention and radially adjustable door hinge, in which the lower supporting element and the upper supporting member are arranged in closely spaced relation to each other (small distance between the door bottom edge and bottom),

Fig. 2 is a cross-sectional view of the door hinge according to the invention from Fig. 1, in which the lower holding element and the upper holding element are arranged at a large distance from each other (large distance between the lower edge of the door and the floor).

The adjustable door hinge 1 according to the invention shown in FIGS . 1 and 2 consists of a first, lower holding element 2 , a second, upper holding element 4 , a bolt element 6 connecting the holding elements 2 and 4 with one another and a bolt element 6 in the first holding element 2 against a screw or securing element 8 that prevents rotation .

The first, lower holding element 2 has a through-bore 10 with an internal thread 12 , preferably cylindrical base body 14. The base body 14 has at least one, but preferably, as shown in FIGS. 1 and 2, two peg-shaped, radially outwardly extending fastening elements 16 a and 16 b, which are inserted into corresponding bores of the door frame, not shown in the drawings, and which ensure a firm connection between the holding element and the door frame.

The bolt element 6 connecting the two holding elements 2 and 4 to one another has a first end section 30 provided with an external thread 32 , which is screwed into the internal thread 12 of the through bore 10 of the first holding element 2 . The bolt element 6 also has a second, preferably smooth end portion 34 , which serves for mounting the second holding element 4 .

In the preferred embodiment of the invention, the bolt element 6 has a third section 38 between the first end section 30 and the second end section 34 , which has a different diameter in relation to the sections 30 and 34 . The diameter of this third section 38 is preferably selected so that it corresponds to the outer diameter of the second holding element 4 and / or the outer diameter of the first holding element 2 . However, the diameter of the section 38 can also be chosen to be larger or smaller.

At the section 38 , a preferably annular end face 40 directed towards the second end section 34 is formed, which together with an opposite annular end face 23 provided on the upper holding element 4 forms an axial bearing for absorbing the axial forces caused by the weight of the door from the second holding element 4 are transferred to the first holding element 2 . In section 38 , recesses 42 can also be formed, into which a tool, for. B. a screwdriver, nail, mandrel etc. can be inserted to rotate the bolt element 6 in the holding elements 2 and 4 in one or the other direction and thereby to change the distance between the two holding elements 2 and 4 . The recesses 42 are preferably arranged at equal intervals around the circumference of the section 38 . Instead of the recesses 42 , however, the section 38 can likewise have mutually parallel circumferential surfaces, similar to the head of a machine screw, so that the bolt element 6 can be rotated with the aid of a conventional open-ended wrench. Rotation of the bolt element 6 to adjust the height of the door can also take place with the aid of a slot-shaped or cross-slot-shaped or otherwise shaped recess 35 and a corresponding tool (e.g. a screwdriver), which is located in a at the first end section 30 of the bolt element 6 formed end face 33 can be.

In order to prevent further inadvertent rotation of the bolt element 6 and thus an undesired height adjustment of the door after a height adjustment of the door, an external thread 60 can be inserted into the internal thread 12 of the through bore 10 of the first holding element 2 from the side opposite the first end section 30 having screw element 8 are screwed in as a securing means which, together with the first end section 30, forms an anti-rotation lock screw connection. The Schraubele element 8 can, as shown in FIGS. 1 and 2, for. B. be a grub screw that has a recess 64 , for example in the form of a slot or a hexagon hole. The screw element 8 can, however, also in any other way, for. B. as a conventional machine slot or Phillips screw etc. Furthermore, the bolt element 6 can be secured against rotation with respect to the first holding element 2 by securing means in the form of a screw element, not shown in FIGS . 1 and 2, which is screwed radially into the base body 14 of the first holding element 2 at the level of the first end section 30 , through which the first End portion 30 is clamped in the through hole 10 of the first holding element 2 .

In the preferred, radially and axially adjustable embodiment of the invention shown in FIGS. 1 and 2, the upper holding element 4 consists of a cylindrical base body 20 , in which a first axial bore 22 for receiving the second end portion 34 of the bolt element 6 , a second axial Internal threaded bore 125 for receiving a securing element 131 and a third radial through bore 129 arranged between the axial bores 22 and 125 for receiving a peg-shaped fastening element 124 are formed.

The first axial bore 22 can, for example, as shown in FIGS . 1 and 2, be designed as a blind bore with a bearing surface 46 formed therein, the latter, together with the opposite end face 44 of the bolt element 6, an axial bearing for receiving the weight force acting in the axial direction Door forms. The bore 22 can, however, also be designed as a bore corresponding to the radial through bore 129 , so that the axial mounting of the door solely via the annular end face 23 formed on the base body 20 of the upper holding element 4 and the associated annular one formed on the section 38 of the bolt element 6 End face 40 takes place. The axial mounting of the second holding element 4 and the bolt element 6 can thus either be carried out either alone over the end faces 23 and 40 , alone over the end faces 44 and 46 or both over the end faces 23 and 40 and over the end faces 44 and 46 together .

In the internal thread of the second axial bore 125 , a screw-shaped securing element 131 is screwed, which, for example, as shown in FIGS. 1 and 2, as a cylinder screw (DIN 912) with a hexagon socket head 133 or as a stud screw, not shown in the figures (DIN 915) can be formed. In the preferred embodiment of the invention, the fuse element 131 comprises a pin-shaped projection 135 which hineinerstreckt at eingedrehtem fuse element 131 in the radial through hole 129th

The radial through bore 129 has a section of larger diameter 137 , which advantageously merges conically into a second section of smaller diameter 139 . In the through hole 129 , the peg-shaped fastening element 124 is inserted, which has a first smooth-walled, the sections 137 and 139 of the through hole 129 adapted section 141 and a second, screwed into a hole formed in the door or the door frame, not shown, threaded portion 143 . In the preferred embodiment of the invention, a groove 145 is formed approximately in the middle of the section 141 of the fastening element 124 , into which the peg-shaped projection 135 of the securing element 131 engages. The depth of groove 145 is selected such that at almost completely screwed-in securing member 131, the fixing member 124 by the engaging into the groove protrusion 135 bore in the passage 129 is clamped, so that the fastening element is fixed in radial and axial direction 124th In an embodiment not shown, the groove 145 can have a V-shaped side wall and the projection 135 can have a corresponding conical shape.

However, the groove 145 and the projection 135 engaging in it are not absolutely necessary for fixing the fastening element 124 . So it may be sufficient especially in light doors for fixing the fastener 124 when a fastener and a simple, no pin-shaped projection 135 having machine screw used as a backup means 131 124 with a keyless first section 141st

In order to adjust the door in the radial direction in the installed state, the securing means 131 is so far solved in the embodiment of the invention shown in FIGS . 1 and 2 that the fastening supply element 124 is freely rotatable in the through bore 129 , but the peg-shaped projection 135 still engages in the groove 145 . Subsequently, the fastening element 124 is rotated with the aid of a screwdriver or an Allen key and an associated, slot-shaped recess or hexagon hole 147 formed on the end face of the fastening element 124 until the desired radial distance between the upper holding element 4 and the door , or the door frame is set. Then the securing means 131 is tightened again in order to fix the fastening element 124 , ie to clamp it.

In the preferred embodiment of the invention, the securing means 131 and the fastening element 124 of the upper holding element 4 and the screw element 8 in the lower holding element 2 are provided with uniform hexagon holes or uniform slot-shaped recesses, so that these can be adjusted with only a single Allen key can. Furthermore, the recesses 42 in the bolt element 6 can be formed as bores, the diameter of which is the same size as the other hexagon bores, so that the entire door hinge can be adjusted axially and radially with one and the same tool.

The adjustable door hinge shown in FIGS. 1 and 2 is advantageously used in the combination according to the invention, shown there, of a height-adjustable lower holding element 2 and a radially or laterally adjustable upper holding element 4 . However, it is also possible to combine the lower holding element 2 according to the invention with a conventional upper holding element, and the upper holding element 4 according to the invention with a conventional lower holding element which cannot be adjusted in height.

The dimensions of the lower and upper holding element 2 , 4 are preferably chosen so that their outer diameter, the diameter of the fastening means 16 a, 16 b and 124 and the axial length of the upper holding element 4 correspond to the standard dimensions of a conventional (non-adjustable) door hinge . The axial length of the lower holding element 2 and the position of the fastening means 16 a and 16 b on the base body 14 of the first holding element 2 are preferably chosen so that there is a bolt element which is screwed into the internal thread 12 of the through bore 10 by up to about half or up to three quarters 6 the built-in door is currently in a position opposite the door frame and / or the floor, which corresponds to the position which a door provided with conventional, non-adjustable door hinges has in its basic setting.

Furthermore, there is the possibility of arranging the first holding element 2 on the door and the second holding element 4 on the door frame, ie interchanging the first holding element 2 and the second holding element 4 with one another.

The holding elements 2 and 4 and the bolt element 6 are preferably made of metal, for. B. iron, steel, brass, aluminum etc., but can also be made either partially or completely from another material, such as plastic.

Claims (11)

1. Adjustable door hinge ( 1 ) with a first, a bore ( 10 ) with an internal thread formed therein ( 12 ) and first fastening elements ( 16 a, 16 b) having door frame-side holding element ( 2 ), with a second, a bore ( 22 ) and second fastening means ( 124 ) having a door-side holding element ( 4 ), with a bolt element ( 6 ) extending into the bore ( 22 ) of the door-side holding element ( 4 ) and into the bore ( 10 ) for connecting the first and second holding elements ( 2 , 4 ), which a first with an external thread ( 32 ) and in the internal thread ( 12 ) of the bore ( 10 ) screwable end portion ( 30 ) and a second, in the bore ( 22 ) of the second Hal teelements ( 4 ) rotatable End portion ( 34 ) mounted and with a securing means ( 8 ) for securing the bolt element ( 6 ) against rotation in the bore ( 10 ) of the first holding element ( 2 ), wherein the bolt element ( 6 ) n between the first end portion ( 30 ) and the second end portion ( 34 ) arranged third portion ( 38 ) of the same or larger diameter, characterized by a screwing into the bore ( 10 ) designed as a securing means ( 8 ) and in which third section ( 38 ) arranged recesses ( 42 ) which, when the door is installed, allow the bolt element ( 6 ) to be rotated with the aid of a tool which can be inserted into the recesses ( 42 ). 2. Door hinge according to claim 1, characterized in that in the door-side holding element ( 4 ) a radial through bore ( 129 ) is provided, in which a threaded portion ( 143 ) and via engagement means ( 147 ) rotatable, essentially union-shaped second fastening means ( 124 ) is rotatably received and furthermore a threaded bore ( 125 ) is provided in the holding element ( 4 ) on the door side, into which a securing element ( 131 ) for fixing the second fastening means ( 124 ) can be screwed. 3. Door hinge according to claim 2, characterized in that the through hole ( 129 ) has a portion of larger diameter ( 137 ) and an adjoining portion of smaller diameter ( 139 ). 4. Door hinge according to claim 3, characterized in that the larger diameter section ( 137 ) merges into the smaller diameter section ( 139 ) and the second fastening means ( 124 ) one of the larger diameter section ( 137 ) and the smaller diameter section ( 137 ) has adapted section ( 141 ). 5. Hinge according to one of claims 2 to 4, characterized in that in the second fastening means ( 124 ) a groove ( 145 ) is formed, into which the securing element ( 131 ) extends. 6. Door hinge according to claim 5, characterized in that on the securing element ( 131 ) a pin-shaped, the groove shape adapted projection ( 135 ) is formed, which engages in the groove ( 145 ) of the second fastening means ( 124 ). 7. Door hinge according to claim 6, characterized in that the side walls of the groove ( 145 ) are substantially V-shaped, and the projection ( 135 ) has a conical shape adapted to the V-shape. 8. Hinge according to one of the preceding claims, characterized in that the recesses ( 42 ) are arranged at the same intervals around the circumference of the section ( 38 ). 9. Hinge according to one of the preceding claims, characterized in that the diameter of the third section ( 38 ) substantially corresponds to the outer diameter of the holding elements ( 2 , 4 ). 10. hinge according to one of the preceding Ansprü surface, characterized in that the Sicherheitsmit tel ( 8 ) is formed by a grub screw. 11. Door hinge according to one of the preceding claims, characterized in that the first door frame holding element ( 2 ) and the second door-side holding element ( 4 ) are interchanged.